Apparatus for perforating paper strips or the like.



No. 829,932. PATENTED AUG. 28, 1906.

A.POLLAK.

APPARATUS FOR- PERFORATING PAPER STRIPS OR THE LIKE. APPLICATION FILEDJUNE so, 1906.

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PATENTBD AUG. 28, 1906 APPARATUS FOR PBRPORATING PAPER STRIPS OR THELIKE. APPLICATION rum) UNE 30. 1906.

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- A.P0LLA'K. APPARATUS FOR PERFORATING PAPER STRIPS OR THE LIKE.

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wi bmeoowx UNITED STATES PATENT GFFTGE.

APPARATUSFOR PERFORATING PAPER STRIPS OR THE LIKE.

Specification of Letters Patent.

Patented Aug. 28, 1906.

Application filed June 30,1906. Serial No. 324,115.

To all whom it may concern.-

Be it known that I, ANTON PoLLIiK, a subject of the Emperor ofAustria-Hungary, residing in Paris, France, have invented certain newand useful Improvements in Apparatus for Perforating Paper Strips or theLike, of which the following is a specification.

The present invention relates to improvements in apparatus forperforating ,paper strips and the like covered by Letters Patent No.736,775, granted to me August 18, 1903.

The main object of the present invention is to increase the certainty ofthe apparatus, to render possible the operation of the same by as smalluse of power as possible, and to avoid all shakings of the apparatuswhich might produce an irregular forward movement of the paper strip.The invention further comprises an arrangement for the perforation ofpaper strips such as are employed in the WVheatstone telegraph and whichare previously provided with a row of guiding holes. In this type ofstrip it is necessary that the perforations should be in alinement withthe previously-made guide-holes in such a way that the center points lieperpendicular to the side edges of the strip.

In the accompanying drawings, Figure 1 is a plan view with parts of theapparatus omitted, illustrating a new form of switch device. Fig. 2 is aview from beneath of the parts of the switch device. Fig. 3 is a sectionon the line 1 1 of Fig. 2. Fig. 4 is a section on the line 2 2 of Fig.2. Fig. 5 is a detail in section on the line '2) e of Fig. 2. .Fig. 6 isa detail view showing the punching mechanism and strip-advancingmechanism with certain of my improvements applied thereto. Figs. 7 and 8are detail views illustrating a device for adjusting and holding thepaper strip, as applied to the punching mechanism. Figs. 9 and 10 aredetail views illustrating a modification of the device for adjusting andholding the paper strip. Fig. 11 is a detail view illustrating anothermodification of the device for adjusting and holding the paper strip.Fig. 12 is a detail view of the reciprocatory selector-bar. Fig. 13 is aplan View. Fig. 14 is a section taken on the line 3 3 of Fig. 13,certain details being omitted from this view to prevent confusion.

The present apparatus includes punching mechanism comprising a die 20,having groups of apertures 61 and a number of punches 62, correspondingin size and posi-' tion to the apertures in the die, a series ofselector-bars 63 for selecting various pins or groups of pins, a seriesof keys 7 to operate the selector-bars, and strip-advancing mechanismcomprising a swinging frame 17, provided with an arm 18. By means of thekeys and the selector-bars a desired punching pin or group of pins isselected out of the total number, and the strip is punched with the pinsselected. The punching is per formed by holding fixed. the pins selectedand (the strip being arranged between the die and the ends of the pins)pressing the die and strip against the ends of the pins, so that thestrip is punched by the pins, which are held fixed. The work of punchingis performed by an electromagnet 64, having an armature 65, connected bya lever 66 with the die 20. Dotted lines a a, Fig. 2, serve toillustrate the conductors of an electric circuit, in which is interposeda normally open key-operated switch I) and a normally closed switch 0and which, though not shown, lead from said switches to a suitableelectric-current supply and the electromagnet 64. The movement of thekey selects that is to say, renders opcrativea particular punching-pinor group of punching-pins and completes the electric circuit through themagnet, which acts subsequently to the selection of the pins and bringsthe die down on the punching-pins and punches out perforations with thepins which have been selected, also drawing backward the oscillatingstrip-advancing mechanism and then breaking its own circuit. On

the breaking of the circuit the parts return to their originalpositions, the strip-advancing mechanism in its return forward movementcarrying the strip with it.

IVith the exception of the switches b and c and the changes hereinafterpointed out all of the mechanism hereinbefore referred to issubstantially the same as that fully set forth in my prior patentreferred to and constitutes no part of the present invention. Theseparts will therefore only be described generally or to such an extentthat, coupled with a detailed description of the improvementscontemplated, the present invention may be readily understood andappreciated.

In the accompanying drawings, Figs. 1 to 5, inclusive, show a new switchdevice which prevents the premature interruption of the circuit closedon the depression of a key and by which the electromagnet operating thepunching mechanism is actuated. The device shown in these figuresconsists, essentially, of a frame 5, oscillating about a shaft 3 IIO ina slot 1 of the base-plate 2 of. the perforating apparatus andconstantly pressed upward by a spring 4. The key-levers 7 lie across thelongitudinal sides 6 of the frame 5, and on the depression of any of thekeys 7 the frame 6 also swings downward,whereby the circuit is closed bya contact-roller 8, mounted on the longitudinal side 6 of the frame andthe contact-springs 9. In this positionthat is to say, as soon as therojection 10 has passed the lower edge of the bolt 10the frame is lockedby the bolt 10, which is constantly pressed by a spring 10 against theprojection 10 and the bolt 10 is only withdrawn to release the frame 5 6after the punching operation has been completed under the influence ofthe electromagnet. At this moment the circuit is broken at anotherplace, and simultaneously the bolt 10 is Withdrawn to release the frame5 6 and locked in its retracted position. The withdrawal of the bolt 10is brought about when the shaft 1 1 is turned by a crank 1 1 rigidlyconnected therewith, drawing back against the action of the spring 10 apin 11 on said crank engaging a lug (1, provided on the bolt 10. As soonas the punching operation is completed the circuit is broken by means ofthe following mechanism: The free end of the lever 66, connected to thearmature 65 of the electromagnet, extends above the end a of a lever 11,Fig. 14 of the drawings. As soon as the armature 65 has approached themagnet so closely as to complete the punching operation the free end ofthe lever 66 engages the end a of the lever 11 and forces the samedownward, whereby the lever 1 1, mounted in the bearings 12, oscillates,and the contact between the contact-roller 12 of the lever 11 and thecontact-springs 13 is broken. The lever 11 is rigidly connected with theshaft 11, so that when said lever oscillates the shaft 11 is turned,whereby the above-mentioned withdrawal of the bolt 10 from theprojection 10 is accomplished and the frame 5 6 released. In thisposition-that is, when the contact-roller 12 is removed from the springs13the lever 1 1 is fixed by a spring-controlled catch device. Thisconsists of abar 14, which may be moved to and fro in bearings 14 and isconstantly pressed against the sides of the lever 11 by a spring 14,Figs. 4 and 5. Now when the lever 11 oscillates the bar may be I forcedinwardly under the lower edge of the lever 1 1 by the spring 14 and thelever 1 1 and the contact-roller 12 are held. in an elevated positionuntil the bar is drawn out by the two-armed lever 15. This lever 15shares in the oscillation of the frame 5 6. As already stated, however,the bolt 10 and the frame 5 6 are released, whereby the latter under theinfluence of the sprin 4 is returned to its ori inal position. ereby,however, the

iing device 14 14 is released by the elbowlever 15 being caught by a pin6, arranged on the frame 5 6, so that the lever 11 under the influenceof the spring 2 returns to its position of repose and then closescontact between the rollers 12 and the springs 14. The whole arrangementis now again in its normal position of repose and is ready for the nextpunching operation.

In order to prevent a return oscillation of the frame [17 from movingforward the paper on the engagement of the step-formed end of the arm 18with a stop 19, hereinafter described, before the locking devices (notshown) of the strip-advancing mechanism have seized the paper strip, acurved rackbar. 21, Fig. 6, movable upward and downward with theperforating die or matrix 20, is arranged, while on the frame 17,whichmoves forward the paper, a spring-controlled pawl 22 is fixed, which onthe swinging of the frame 17 to the right slides unimpededly on thecurved rack-bar 21 and cannot swing back before the rack-bar 21 with theperforatingdie has returned to its position of repose after the punchingoperation is completed. In order on the swinging back of the frame 17 tolessen the momentum of the same on the close of its return movement andto thus prevent sudden contact between the frame 17 and its stop,effecting an irregular forward movement of the paper strip, I provide aretarding means, shown in this instance as a dash-pot 23. On thepiston-rod 24 of the pump a slide 25 is fixed, said slide being providedwith a guide-groove 26. A pin 18, carried by the arm 18, engages theguidegroove, the formation of which is such that the pump on largemovements of the frame 17, as well as on small movements of the same,acts as a brake, but only on the conclusion of the return movement ofthe frame when the pin 18 passes from the curved art of the guide 26into the horizontal part 0 the same.

Figs. 7 and 8 illustrate a device for adjusting and holding a paperstrip that has been previously provided with guide-holes during thepunching operation in such a way that the center points of the holes tobe perforated and the center points of the corresponding guide-holes ofthe strip fall in a line perpendicular to the side edges of the strip.Said device comprises a comb 28, supported by a spring 29 and having arow of pins 28 and a shank 33, slidably engaging a slot 34,formed' inthe top plate of the casing for the punching mechanism. In addition tothe groups of apertures 61 the die 20 is provided with a row ofapertures 60, corresponding in number and position to the pins 28, whichare adapted to enter said apertures when the die is depressed. The pinsof the comb 28 enter immediately before the perforating under theinfluence of the spring 29 into the guide-holes of the paper strip,guided through the opening of the perforating-die, and hold the sameagainst pression of the die 20 said locking-lever holds fast the shank33 by its beveled or notched part 34 in its depressed position by meansof a fork 35 thereon. The mode of ac tion of this device is as follows:The comb 28, the pins of which lying in the guide-holes of the strip forthe same against any displacement, is during the punching operation alsodepressed downward by the depressed perfo rating-die 20 in such a waythat on the completion of the punching operation the beveled or rearundercut part 34 of the shank 33 lies in front of the fork 35. Now asthe perforating-die 20 in its descent or the projection 32, Fig. 6,connected with the die, also presses on the inclined plane 31 of thelever 31, Fig. 7, pivoted on the pin 32, the lever 31 is turned in thedirection indicated by the ar row in Fig. 7, while by means of the pin35 the fork 35 is moved against the shank 33, or rather against thebeveled part 34 of the same. In this position of the fork 35 the spring29 cannot press the comb 28 upward that is to say, the pins are heldaway from the paper strip and cannot enter the guideholes of the stripand the paper strip can be pushed forward unhindered. As soon as themoving forward of the paper strip is ended the fork 35 is drawn to theleft by a pin 36 on the moving forward of the frame 17, which strikesanother pin 38 on the 1ever-arm 37, and the comb 28 can now move forwardunder the influence of the spring 29 and enters the guide-holes of thepaper strip. The curved guide 27 (shown in Fig. 8) serves to protect theperforated paper strip from being creased or turned during the advanceof the same.

According to the form of construction 4 shown in Figs. 9 and 10, thesame object-- that is, the adjustment and fixing of the stripis attainedby a pin or spiked wheel 39, moved upward and downward with theperforating-die 20. This wheel on the moving forward of the paper striprotates with its pins constantlyin the guide-holes of the paper strip,whereby the latter is properly adjusted. During the stoppage and descentof the die the wheel 39 is, however, locked by a spring-pawl 40, whichengages a ratchetwheel 41 connected thereto, and thereby the paper stripis fixed. In the depressed position of the die this pawl is held fast ina similar way to the comb 28 in Figs. 7 and 8 by a locking-lever 42, sothat on the upward movement of the perforating-die the pin or spikedwheel 39 is loosely revoluble on its axis and the moving forward of thepaper strip'is not prevented. After the movingforward of the paper stripis completed the pin 36 of the frame 17 on movingforward comes intooperation and draws back the locking-lever 42 by means of its pin 43,and the pawl 40 under the action of the spring 44 engages theratchetwheel 41, which looks the spiked wheel 39, so that the pins orspikes of the same hold fast the paper strip.

Fig. 11 is another form of construction of the device for adjusting thepaper strip and preventing the displacement of the paper strip duringthe punching operation. A spiked wheel 45, adapted to be moved up anddown with the die, is also here employed. A two-armed pawl 46 47 has itspivot 48 on a spindle 49, the upper part of which is guided in the die20, while the lower end of the spindle rests on a spring 50. The arm 47of the pawl is curved upward in such a way as to en counter the die 20,while the ar1n46 or a stoptooth or roller on the same lies beneath thespiked wheel and allows it to move freely when the die 20 and the spikedwheel 45 stand in their upper non-working position. Now if the die 20 bedepressed the catch-tooth of the arm 46 enters between two pins of thespike-wheel 45, adjusts the paper strip, and locks the spiked wheel insuch a way that the displacement of the paper strip is entirelyprevented.

The present apparatus also includes means for regulating the distancethrough which the frame 17 swings and the distance to which the strip isadvanced in accordance with the key which is depressed, so that therebya greater space is made for long letters than for short letters. Saidmeans comprises a reciprocatory selector-bar 77, (shown in detail inFig. 12,) provided with teeth 77 which vary in width and are beveled inboth directions, the edges of different teeth being of differentinclinations. Upon the pressing of the keys 7 the operating-arms 7thereof will engage the teeth and slide the selectorbars 77 to the rightor left, as the case may be. This selector-bar 77 is operated on thepressing down of each key and carries at its end a stop 19, pivoted at68. The movable end of the stop rests on a small table or plate 69.According to the inclination of the edge of the tooth which is struck bythe key-arm, the stop 19 is moved a greater or less distance andoperates in the path of an arm 18, the end of which is inclined,preferably, in steps and which in the backward movement of the frame 17moves downward, so that its end according to the position of the stop 19ment by providing the selector-bar 77 with teeth beveled in bothdirections the movement of said bar either into or out of operativeposition is accomplished by the operating-keys, thus dispensing with theuse of the spring to draw back the bar after each punching operationinto its position of repose, whereby the disadvantages incident to theuse of a spring is avoided and the apparatus simplified.

The constructions described represent forms ofconstructions of theimprovements to be protectedwhich have been practically tested. However,as will be readily understood, the same may be altered in many wayswithout departing from the spirit of the invention.

What I claim is 1. In an apparatus for punching a strip with variousperforations or groups of perforations, the combination of a series ofpunching-pins, means for selecting various pins or groups of pins, aseries of keys to operate said means and electrically-operated mechanismfor punching a strip with the pins selected, said mechanism including anormally open electric circuit, an electromagnet, an armature for themagnet and a circuitcloser comprising two contacts, and a movable framecarrying a bridging contact and adapted to be operated by the keys toclose the circuit.

2. In an apparatus for punching a strip with various perforations orgroups of perforations the combination of a series of punching-pins, aseries of selector-bars, a series of keys to operate said selector-bars,and electrically operated mechanism for punching a strip with the pinsselected, said mechanism including a normally open electric circuit, anelectromagnet, an armature for the magnet and a circuit-closercomprising two spring-supported contacts and a swinging member carryinga contact-roller for cooperation with the spring-supported contacts andadapted to be actuated by the keys to close the circuit.

3. In an apparatus for punching a strip with various perforations orgroups of perforations the combination of a series of punching-pins,means for selecting various pins or groups of pins a series of keys tooperate said means and electrically-operated mechanism for punching astrip with the pins selected, said mechanism including a normally openelectric circuit, an electromagnet, an armature for the magnet and acircuitcloser comprising two contacts, an oscillating frame carrying abridging contact-roller for cooperation with said contacts, a spring fornormally holding said frame in the path of movement of the keys, andsaid frame being adapted to be actuated by the keys to close thecircuit.

4. In an apparatus for punching astrip with various perforations orgroups of perforations the combination of a series of punchingpins, aseries of selector-bars, a series of keys to operate said selectorbars,electrically operated mechanism for punching a strip with the pinsselected, said mechanism including a normally open electric circuit, anelectromagnet, an armature for the magnet, and a circuit-closercomprising two contacts and a movable frame carrying a bridging contactand adapted to be operated by the keys to close the circuit; andautomatic means to lock said frame when in a position to close thecircuit.

5. In an apparatus for punching a strip with various perforations orgroups of perforations the combination of a series of punching-pins, aseries of selector-bars, a series of keys to operate said selector-bars,an electrically-operated mechanism for punching a strip with the pinsselected, said mechanism inluding a normally open electric circuit, anarmature for the magnet, and a circuit-closer comprising two contacts,and a movable frame carrying a bridging contact and adapted to beoperated by the keys to close the circuit; means to lock said frame whenina position to close the circuit and mechanism for automaticallydisengaging said locking means when the punching operation has beencompleted.

6. In an apparatus for punching a strip with various perforations orgroups of perforations, the combination of a series of punchingpins, aseries of selector-bars, a series of keys to operate said selector-bars,electrically operated mechanism for punching a strip with the pinsselected, said mechanism including a normally open electric circuit, anelectromagnet, an armature for the magnet and a circuit-closercomprising two contacts and a movable frame carrying a bridging contactand adapted to be operated by the keys to close the circuit; a switchactuated by the armature at the completion of the punching operation tobreak the circuit, means to lock the switch in its open position andmeans ac tuated by said frame for releasing said locking means.

7. In an apparatus for punching a strip with various perforations orgroups of perforations, the combination of a series of punching-pins, aseries of selector-bars, a series of keys to operate said selector-barsand electrically-operated mechanism for punching, a strip with the pinsselected, said mechanism including a normally open electric circuit, anelectromagnet, an armature, a circuit-closer adapted to be actuated bydepressing the keys, means for automatically locking said circuit-closerwhen in a position to close the circuit, a normally closed switchactuated by the armature at the completion of the punching operation tobreak the circuit, means for automatically locking said switch in itsopen position, and means whereby the circuitcloser in returning to itsnormal position releases the switch-locking means. i

8. In an apparatus for punching a strip with various perforations orgroups of perfo rations, the combination of a series of punching-pins, aseries of selector-bars, a series of keys to operate said selector-bars,and electrically-operated mechanism for punching a strip with the pinsselected, said mechanism including a normally open electric circuit, anelectromagnet, an armature for the magnet, a circuit-closer adapted tobe operated by depressing the keys, means for locking the circuit-closerwhen in a position to close the circuit, a normally closed switchactuated by the armature at the completion of the punching operation tobreak the circuit, means for locking said switch when it has been movedto an open position, and means whereby the switch-locking means will notbe released until the circuit-closer returns to an open position.

9. In an apparatus for punching a strip with various perforations orgroups of perforations, the combination of a series of punching-pins, aseries of selector-bars, a bar for regulating the distance the strip isadvanced, a series of keys adapted to operate said se lector-bars andthe last-mentioned bar, said bar being provided with teeth beveled inboth directions whereby the movement of said bar either into or out ofoperative position is accomplished by said keys.

10. In an apparatus for punching a strip with various perforations orgroups of perforations, the combination of a series of punching-pins, aseries of selector-bars, keys for operating the selectorbars, punchingmechanism for punching a strip with the pins selected, means operated bysaid punching mech anism for advancin said strip comprising a swingingframe, and a bar for regulating the amount of movement of said swingingframe, said bar being provided with teeth beveled in both directions andadapted to be moved into or out of operation by said keys.

11. In an apparatus for punching a strip with various perforations orgroups of perforations, the combination of means for advancing thestrip, a reciprocable selector-bar, the

' distance of movement of which controls the distance to which saidstrip is advanced, op erating-keys, and operating-arms connectedthereto, said selector-bar being provided with teeth to be engaged bysaid arms, said teeth being of different widths and beveled in bothdirections, whereby said bar is moved different distances by differentkeys and is adapted to be moved into or out of operative position bysaid keys.

12. In an apparatus for punching a strip with various perforations orgroups of perforations, the combination of a series of punching-pins,means for selecting various pins or groups of pins, a reciprocating diefor punching a strip with the pins selected, a rack-bar carried by saiddie, a swinging frame for advancing the strip operated by the movementof the die, and a pawl carried by said frame for cooperation with therack-bar, whereby the paper-moving frame can swing forward but isprevented swinging back before the die returns to its normal position.

13. In an apparatus for punching a strip with various perforations orgroups of perforations, the combination of a reciprocat ngstrip-advancing device and means including a dash-pot for retarding thesame at the conclusion of its return movement.

14. In an apparatus for punching a strip having guiding-apertures withvarious per forations or groups of perforations, a series ofpunching-pins, punching mechanism, means for advancing the strip andmeans independent of the punching mechanism for engaging theguiding-apertures in the strip to ad ust the same and preventdisplacement thereof during the punching operation. I

15. In an apparatus for punching a strip having guiding-apertures withvarious per forations or groups of perforations, a series ofpunching-pins, punching mechanism, and means independent of the punchingmechanism for intermittently engaging the guidingapertures in the stripto adjust the same and prevent displacement thereof.

16. In an apparatus for punchmg a strip having guiding-apertures withvarrouspcr- -forations or groups of perforations, a series ofpunching-pins, punching mechanism, means for intermittently advancingthe strip and means independent of the punching mechanism for engagingthe guiding-apertures there in when the strip is not being advanced.

17. In an apparatus for punching a strip having guiding-apertures withvar1ous per forations or groups of perforations, a serlesofpunching-pins, a reciprocating punching-dle, a spring-supported memberprovided wlth a plurality of pins, said member be1ng depressed and thepins engagmg the gu1d1ngapertures in the strip as the die is moveddownward in the punching operation and means actuated by the movement ofthe die to lock said member in its depressed position until after thestrip has been advanced.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

ANTON POLLAK. Witnesses:

AUGUSTUS E. INGRAM, O. K. FRASER.

